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forces, non contact, a fact is if the same 2 magnets are out next to each…
forces
contact forces
pull
pull is a non contact force that is he opposite of push. instead of pushing the object away from you pull brings it closer
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normal
normal is a contact force that is sometimes also know as the "support" force that helps stabilize an object and help two objects not pass though each other
an example is when you turn around a corner sharply and quickly and end up hitting a wall thats around the corner, its painful because of the normal force you cant pass though the wall
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friction
friction is a contact force that is resistant and is caused by two or more objects moving over each other.
an example is when you rub both your hands together quickly it creates friction and therefore there is heat
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jump
jump is a contact force that you push off the earth up.
and example is that when you jump to mark a footy you have to push yourself of the earth to jump but gravity will pull you back down to earth
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non contact
electricity
gravity is a non contact force that can pull things together. gravity can pulls to objects together and the bigger the object the bigger the gravitational pull is
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electricity is a non contact force that is measured by newtons. electricity can be used to measure the acceleration of an object.
an example is when you go on a trampoline and your hair sticks up and then you touch you get a zap from the static electricity
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magnetic
magnetic is a non contact force that attracts electrically charged objects or particles.
a example is when you stick a magnet on the fridge it sticks and you can feel a slight pull from the magnet when it is about to stick.
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an observation is when i rubbed a cloth on a balloon and then put it near water the water was drawn to the balloon because of the static electricity
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